Automobile jack



M. JENSEN Aug. 2% 39% AUTOMOBILE JACK Filed Sept. 28, 1940 3 Sheets-Sheet l In ventor %& 7 7 /4 2115 (jg/ms e2 Aflorney J Aug. 26, 1941. M. JENSEN AUTOMOBILE JACK 3 Sheets-Sheet Filed Sept. 28, 1940 Aug. 26, 1941. M. JENSEN AUTOMOBILE JACK Filed Sept. 28, 1940 5 Sheets-Sheet 3 1n uento'r Mill Patented Aug. 26, 1941 UNITED STATES PATENT OFFICE I aurolii rtii JACK I I Marthlnus Jensen, 'Greenwich, Conn. I Application iegltziller 54,48: 0. g

This invention relates to new and useful improvements in automobile jacks.

The primary object of the invention is to provide a device of this character which will minimize the amount of work required when'jaoking up a wheel supporting axle on an automobile when it is necessary or desired. I

Another object of the invention is to provide means for supporting a flashlight or the like when operating the Jack at night.

Another object of theinvention is to provide means for supporting a warning signal.

Other objects of the invention are to provide 1 a device of the aforementioned character which will be strong, durable, highly eiilcient and reliable in use, and which may be manufactured at comparatively low cost.

Still further objects and advantages of the invention will become apparent from a study of the following detailed description, taken in connection with the accompanying drawings, wherein like characters of reference designate corresponding parts, through. the several views, wherein:

' Figure 1 is a rear elevational view of my invention shown in supporting position beneath an automobile wheel and axle. I

Figure 2 is a top plan view of the invention.

Figure 3 is a vertical transverse sectional view taken sulmtantially on the line 3-3 of Figure 2.

Figure 4 is a vertical transverse sectional view of the cradle showing one jack guide rod in extended position. a

Figure 5 is a fragmentary vertical transverse sectional view of the cradle.

Figure 6 is a fragmentary longitudinal vertical section of the cradle.

Figure 7 is a fragmentary rear elevaticnal view of the cradle.

Figure 8 is a side elevational view of the flashlight holder shown partly in section.

- Figure 9 is a fragmentary sectional view of the jack operating handle. Referring now to the drawings in detail, it will be seen that the reference numeral ll designates a cradle, constructed of suitable material, upon which the automobile wheel II is driven. The cradle II is constructed to provide inclined surfaces l2 and i3 and an intermediate grooved surface l4 on its top side .while its bottom side II is straight and its front side II and back side I! are substantially flat and parallel. Holes are formed in the cradle I. in which "are mounted receptacles i8, i9 and 20. Bores 2| are formed in the cradle l0 intermediate-its ends, and near the bottom thereof, each of which t'erminatesfin a counter bore 22 in one side of the cradle ll while the other. ends of the bores terminate in the sides of grooves 23 and 24 in the other side of the cradle l0.

Rods 2i and 26 are slidably mounted in the bores 2i and have pivotally connected thereto arms 21 and 28 by pins 21' at one end portion while the other end portion of each has mounted thereon a compressible coil spring 29 which is mounted in a counter bore 22 in the cradle ll. Each spring 28 rests against the end of a counter bore 22 at one end portion and is engaged at its other end portion with a washer which is secured on the rod by a cotter pin or the like ii.

The cradle ll further has a bore 32- therein in which is housed a signal flag 83.

A flashlight holder 34 provided with a shank I8 is adapted to be inserted into one of the receptacles l8, I9, 20 with the flashlight 38 held in clamped position between the arms 31 and II which are mounted on one end of the shank II as shown in Figure 2. The ends of the arms 21 and 38 are provided with rollers 39 and 40 which are mounted on pins 4| and 42 the arms I! and 38.

A screw Jack 48 operated in conjunction with the cradle II is. provided with a flanged bottom 44 from which extends uprights 45 the top end portions of which are formed to provide tubular guides 46 which enga e on the arms 21 and 28 to hold the jack 43 in the correct position relative to the cradle ll. When placed in adiusted position on the arms 21 and 28 the jack 43 is held in position by a set screw 41. i

The screw jack 43 is operated by a handle 4| which is engaged with the Jack 43 by extending through an opening 49 in the cradle l0 and enwhile the section 58 of the handle is tapered as at i4 to provide a hub cap removing tool. The" wrench section 52 is provided with a socket II for receiving the tapered end 64 of the section I! to complete the jack handle 48 as shown in Figure 9 of the drawings.

The device is operated as follows:

The cradle I0 is placed in front of the wheel II with the jack 43 in position on the arms 21 and in the ends of 28. After positioning the cradle l and jack 43 the automobile is then moved to cause the wheel H to travel up oneof the two inclined surfaces l2 or 13 and come to rest at the grooved top side of the cradle l4. When the wheel II is in this position the jack handle 48 is inserted in the bore 49 and engaged at one end with the socketed member 50 of the jack 43. The jack 43 is then operated to engage the wheel supporting axle and lift the wheel ll clear of the cradle HI. The cradle l0 and handle 48 are then removed from beneath the wheel H at which time the wheel ll may be removed and replaced. Upon the lowering of the wheel and axle the jack handle 48 is inserted in the socketed member which extends either forwardly or rearwardly of the automobile thus, permitting the wheel I] to be lowered to the ground.

When the cradle I0 is removed from beneath the wheel I I it may be used to support the flag 33 as a signal to motorists in the daytime or to support the flashlight at night. v

Although I have shown and described herein a preferred definitely understood that I do not desire to limit the application of the invention thereto, and any change or changes may be made in the structure and arrangement ofthe several parts, within the spirit of theinvention as claimed.

What is claimed is:

1. In a device of the character described an automobile jack including a cradle having bores therein, rods slidably mounted in said bores, arms pivotally secured to said rods and a jack removably mounted on said arms.

embodiment oi! my invention, it is to be 2. In a device of the character described, a cradle having transverse bores and counter bores therein, rods mounted in said bores and counter bores, springs about said rods in said counter bores, arms pivotally secured to said rods and engaged in aid bores, a jack engaged on said arms, and means for operating said jack.

3. In a device of the character described, a cradle having inclined end portions and a substantially flat bottom side, and further having transverse bores and counter bores therein, rods mounted in said bores and counter bores, resilient means about said rods for urging said rods outwardly of said bores and counter bores, arms pivotally secured to said rods and held engaged in said bores by said resilient means, a jack engaged on said arms, and means extending through said cradle for operating said jack.

4. In a device of the character described an automobile jack including a cradle having bores therein, rods slidably mounted in said bores, arms pivotally secured to and extending axially .from said rods, means for holding said arms in extended position'and a jack slidably engageable on said arms.

5. In a device of the character described, a cradle having transverse bores and counter bores therein and further having grooves in one side thereof, rods mounted in said bores and counter bores, arms pivotally secured to said rods and seated in said grooves, and resilient means about said rods in said counter bores for holding said arms seated in said grooves.

MAR'I'HINUS JENSEN.

in said counter bores 

